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United States Patent | 5,511,496 |
Schoener ,   et al. | April 30, 1996 |
Glass and metal are recovered separately by melting from the solid residues produced in a refuse incineration plant, particularly from slag. The melting is effected in two zones. In the first, top melting zone the oxidic constituents of the residues are converted into a glass melt. In the second, bottom melting zone the metallic constituents of the residues are converted at a higher temperature into a metal melt. The two melts are recovered separately.
Inventors: | Schoener; Peter (Taunusstein, DE); Pfluegl; Karl-Heinz (Weinboehla, DE); Kiethe; Norbert (Friedewald, DE) |
Assignee: | Von Roll Umwelttechnik AG (Zurich, CH) |
Appl. No.: | 194228 |
Filed: | February 10, 1994 |
Feb 10, 1993[CH] | 404/93 |
Current U.S. Class: | 110/346; 110/165A; 110/235; 110/236 |
Intern'l Class: | F23J 001/08 |
Field of Search: | 110/342,344,346,255,259,238,165 A,242 588/201 |
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5078065 | Jan., 1992 | Tsunemi et al. | 110/342. |
5237940 | Aug., 1993 | Pieper et al. | 110/346. |
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0103217 | Jun., 1985 | JP | 110/259. |
0152813 | Aug., 1985 | JP | 110/344. |
VDI Bildungswerk, BW 1423 (CAR116.a4h), Mar. 16-17, 1992, pp. 1-18, M. FAULSTICH, et al., "VERFAGREN THERMISCHEN INERTISIERUNG VON RUCKSTANDEN AUS MULLVERBRENNUNGSANLAGEN". VDI Bildungswerk, BW 1389, Mar. 16-17, 1992, pp. 1-10, M. BRUNNER, "VON ROLL SCHLACKEBEHANDLUNG IN DREHROHR". VDI Bildungswerk, BW 1384, Mar. 16-17, 1992, pp. 1-15, K. HORCH ,et al. , "BRENN-SCHMELZ-VERFAHREN ZUR VERGLASUNG VON SCHLACKE UND FILTERASCHE". VDI Bildungswerk, BW 1383, Mar. 16-17, 1992, pp. 1-18, A. KANCZAREK,"SCHWEL-BRENN-VERFAHREN MIT VERWENDBARER SCHLACKEFRAKTION". |